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i have read the mach3 manual section on spindle control and can not figure out how to set it up for PWM control. i have a PDMX board that does not have a dedicated PWM circuit for motor control. can i use the fourth axis that i am not using? PDMX calls this axis A or axillary output. is this controllable by mach3 as PWM spindle control?

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Hello:

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Can anyone tell me how the PWM signal comes out of Mach?. And if you have made connection correctly from G540?. Pin 7,8 and 9 are connected to VFD, Does pin 7 and 9 put out 12V on their own?

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Thanks

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Chris

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Best regards, Spencer Chase
67550-Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...

(425) 791-0309

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?

Best regards, Spencer Chase

67550-Bell Springs Rd.

Garberville, CA 95542 Postal service only.

Laytonville, CA 95454 UPS only.

Spencer@...

(425) 791-0309

开云体育

in ports and pins, motor output, you just set some unused pin for step and direction and then one of them (the step???) is PWM'd? i hope the PDMX board can handle a reasonably high PWM frequency on a step or direction driver.
if i select PWM control in spindle setup how would i control the second spindle that does not want PWM control? do i have to fake it some way? i am currently using M3 for the first spindle that i want to PWM and M4 for the second spindle that needs to be just on/off

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Ports and pin then config is all you have to do and some additional with pully. The rest is electrical…

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Chris

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From: mach1mach2cnc@... [mailto:mach1mach2cnc@...]
Sent: Tuesday, March 10, 2015 10:04 AM
To: mach1mach2cnc@...
Subject: Re: [mach1mach2cnc] VFD and PWM

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i have read the mach3 manual section on spindle control and can not figure out how to set it up for PWM control. i have a PDMX board that does not have a dedicated PWM circuit for motor control. can i use the fourth axis that i am not using? PDMX calls this axis A or axillary output. is this controllable by mach3 as PWM spindle control?

On 3/10/2015 9:48 AM, Chris microcnc_31@... [mach1mach2cnc] wrote:

?

Hello:

?

Can anyone tell me how the PWM signal comes out of Mach?. And if you have made connection correctly from G540?. Pin 7,8 and 9 are connected to VFD, Does pin 7 and 9 put out 12V on their own?

?

Thanks

?

Chris

-- 

?

Best regards, Spencer Chase

67550-Bell Springs Rd.

Garberville, CA 95542 Postal service only.

Laytonville, CA 95454 UPS only.

Spencer@...

(425) 791-0309

--

Best regards, Spencer Chase
67550-Bell Springs Rd.
Garberville, CA 95542 Postal service only.
Laytonville, CA 95454 UPS only.
Spencer@...

(425) 791-0309